A 22-year-old woman was arrested Tuesday in Phoenix on suspicion of child abuse, more than two months after her 2-year-old daughter was found dead in a hot east Mesa mobile home.

The arrest of Sierra Pitt stems from the condition of her other child, a 14-month-old boy who survived but was found malnourished, dehydrated and with bruises on his back and legs.

Detective Steve Berry, a Mesa police spokesman, said a decision on whether to seek murder charges in the 2-year-old’s death will be based on the outcome of an autopsy by the Maricopa County Medical Examiner’s Office that has not been completed.

The two children were found with Pitt in an excessively hot mobile home with a broken air-conditioner on Aug. 25.

Doctors and nurses at a hospital concluded that the surviving child had pressure sores on his skin from lying in bed for a couple of days and was severely dehydrated and malnourished, according to the court document.

“I honestly don’t think that I’m very good,” Pitt responded when asked if she was a good parent, the document said.

Pitt also told police that she had been depressed since high school and never thought that she would have children.

A family friend interviewed by police said Pitt had contacted her in early August about adopting the children, saying she didn’t want them anymore and never wanted them in the first place, the document said.

When the family friend told Pitt she could not afford to pay the airfare for the children to fly to her house, Pitt said she would “handle the problem” on her own, the document said.

Pitt told a reporter days after daughter Mary’s death that she was devastated by the little girl’s demise and that she missed her son.

Pitt said she had fallen asleep while watching a music video and had called 911 when the little girl was unresponsive. She said her family had survived hotter conditions during a power outage.

“I don’t know what I would have done if I lost them both,” Pitt said. “They were my everything.”

A former roommate of Pitt’s told police, however, that she would leave the children in a playpen for 20 hours a day and that there often was no food available in the mobile home, the court document said.

Phoenix Children’s Hospital medical staff offered a medical opinion that the surviving child’s condition was the result of months of neglect and that he was at risk of serious physical harm or even death.

Initial reports indicated that police were to turn over the boy to state Child Protective Services after his treatment at the hospital, but it was unclear if they did so or where the child is at this time.

Pitt eventually acknowledged she had neglected the little boy, according to the document. A court commissioner set bond at $35,000.

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